打开OS X自带的【终端】程序(可用Spotlight搜索找到),向终端中复制粘贴一下命令并回车:
/System/Library/Frameworks/CoreServices.framework/Versions/A/Frameworks/LaunchServices.framework/Versions/A/Support/lsregister -kill -r -domain local -domain user;killall Finder;echo "Open With has been rebuilt, Finder will relaunch"
这样再次右键使用“打开方式”的时候,就不会出现那么多重复项目了: